What are the reasons for ineffective brakes?
3 Answers
Reasons for ineffective brakes: 1. Excessive free travel of the brake pedal; 2. Insufficient or no oil in the brake master cylinder reservoir; 3. Air entering the brake lines or vaporization of brake fluid causing air resistance; 4. Aging or wear of the master cylinder and wheel cylinder cups leading to poor sealing; 5. Loose or detached vacuum pipe connections of the vacuum booster or power booster; 6. Diaphragm rupture or poor sealing of the sealing ring. In vehicles, braking mainly refers to pressing the brake pedal, which relies on the friction between the brake pads and brake discs to generate resistance, thereby slowing down or stopping the vehicle. Whether it's a manual transmission or an automatic transmission model, the brake pedal of a car is controlled by the right foot.
The brakes aren't working well, let me share some experience. Having driven for decades, common issues include brake pads worn down to half their thickness, or insufficient brake fluid causing low pressure. It could also be grooves worn into the brake discs affecting braking force. Sometimes it's a faulty wheel sensor sending wrong signals. In short, if the brake pedal feels unusually soft or vibrates heavily, be cautious. I've experienced brakes slipping on wet roads, mostly due to oil contamination or water ingress. For safety, it's best not to force it—get it checked by a professional shop. Don't skimp on small repairs that could lead to big accidents.
Working in the car factory, we often encounter brake failure issues. Usually, it's due to poor-quality brake fluid contaminated with dirt or air, which affects responsiveness. It could also be caused by aging brake lines leaking fluid or a faulty ABS module leading to unstable braking force. Regularly check the brake fluid level yourself; if it's below the standard, top it up promptly. If you experience slow response during emergency braking, don't take it lightly—send it for professional inspection immediately. Otherwise, an accident on the highway is no joke.